;+
;PURPOSE
;	determine if your machine is 64 bit by
;	checking is uname -m gives a result that 
;	contains the substring '64'
;SYNTAX
;	bool=is64bit()
;
;Written by Robert da Silva, UCSC, 3-15-10
;Modified for MacOS 1.5. MF, UCSC, Feb 2011
;
;-
FUNCTION is64bit

;spawn, 'uname -m', uname
uname=!version.arch

return, strmatch(uname, '*64*')
end
